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Nat Commun. 2017 Sep 25;8(1):688. doi: 10.1038/s41467-017-00800-4.

Platinum clusters with precise numbers of atoms for preparative-scale catalysis.

Nature communications

Takane Imaoka, Yuki Akanuma, Naoki Haruta, Shogo Tsuchiya, Kentaro Ishihara, Takeshi Okayasu, Wang-Jae Chun, Masaki Takahashi, Kimihisa Yamamoto

Affiliations

  1. Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan. [email protected].
  2. ERATO-JST, Saitama, Kawaguchi, 332-0012, Japan. [email protected].
  3. PRESTO-JST, Saitama, Kawaguchi, 332-0012, Japan. [email protected].
  4. Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
  5. ERATO-JST, Saitama, Kawaguchi, 332-0012, Japan.
  6. Graduate School of Arts and Sciences, International Christian University, Tokyo, 181-8585, Japan.
  7. Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofu, 400-8501, Japan.
  8. Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan. [email protected].
  9. ERATO-JST, Saitama, Kawaguchi, 332-0012, Japan. [email protected].

PMID: 28947792 PMCID: PMC5613004 DOI: 10.1038/s41467-017-00800-4

Abstract

Subnanometer noble metal clusters have enormous potential, mainly for catalytic applications. Because a difference of only one atom may cause significant changes in their reactivity, a preparation method with atomic-level precision is essential. Although such a precision with enough scalability has been achieved by gas-phase synthesis, large-scale preparation is still at the frontier, hampering practical applications. We now show the atom-precise and fully scalable synthesis of platinum clusters on a milligram scale from tiara-like platinum complexes with various ring numbers (nā€‰=ā€‰5-13). Low-temperature calcination of the complexes on a carbon support under hydrogen stream affords monodispersed platinum clusters, whose atomicity is equivalent to that of the precursor complex. One of the clusters (Pt

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